CycleOps PowerTap - Manual (Page 34)

HUB BATTERIES
Normal battery life in the hub is 400 hours of actual ride time. Use #357
or EPX76 Silver Oxide
type batteries and always replace batteries in pairs. Alkaline type batteries give shorter life and
poorer performance.
BATTERY REPLACEMENT
- Unscrew the plastic battery cover. Use a spanner wrench or bench vise opened wide to get it
started if stuck. There are O-ring seals that can cause the cover to resist the start of motion. The
threading is normal right hand.
- Remove the inner O-ring for ease of installation.
- Remove the battery pack. A small screw driver can be used back and forth between the to ends
to start to lift it out.
- Pop the battery out by bending the plastic retaining tap back and pushing the batter up from
the bottom.
- Check that the electrical connector tab from the inside of the hub is perpendicular to the
bottom of the battery pocket. If the tab gets bent, gently press it back to perpendicular with
a non-sharp tool.
-Slide the battery pack back into position along the center core. As the battery is engaged a small
increase of resistance to installation should be felt as the electrical connections are made.
- Reinstall the O-ring.
- Thread the cap all the way back on.
- Replacement O-rings and battery packs are available from Saris Cycling Group.
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